Today, Pokemon revealed a new trailer for Pokemon Sun & Moon. In this trailer, it revealed two new core features in Sun & Moon and a bunch more pokemon.
Existing Pokemons in different environment result in a different form of the Pokemon, possibly changing both abilities and types.
The Alola Form of Exeggutor is no longer Psychic & Grass, it is now Grass and Dragon and has the ability Frisk instead of Chlorophyll.
Z-Moves are an all new move utilizing both Trainer and Pokemon that is only usable once per battle. It utilizes Z-Ring & Z-Crystals. Players will be able to choose Z-Crystals and the Pokemon’s move must correspond to the Z-Crystal type.